EP 3400202 B1 20240221 - CHEMICALLY STRENGTHENABLE LITHIUM ALUMINOSILICATE GLASSES WITH INHERENT DAMAGE RESISTANCE
Title (en)
CHEMICALLY STRENGTHENABLE LITHIUM ALUMINOSILICATE GLASSES WITH INHERENT DAMAGE RESISTANCE
Title (de)
CHEMISCH VERSTÄRKBARE LITHIUM-ALUMINOSILIKAT-GLÄSER MIT INHÄRENTER SCHADENSBESTÄNDIGKEIT
Title (fr)
VERRES EN ALUMINOSILICATE DE LITHIUM POUVANT ÊTRE RENFORCÉS CHIMIQUEMENT À RÉSISTANCE INTRINSÈQUE AUX DOMMAGES
Publication
Application
Priority
- US 201662276431 P 20160108
- US 2017012459 W 20170106
Abstract (en)
[origin: US2017197869A1] A group of glass compositions in the Li2O—Al2O3—SiO2—B2O3 family that can be chemically strengthened in single or multiple ion exchange baths containing at least one of NaNO3 and KNO3 for a short time (2-4 hours) to develop a deep depth of layer (DOL). In some instances, the DOL is at least 70 μm; in others, at least about 100 μm. The ion exchanged glasses have a high damage resistance (indentation fracture toughness ranging form greater than 10 kgf to greater than 50 kgf) that is better than or at least comparable to that of sodium aluminosilicate glasses.
IPC 8 full level
C03C 3/087 (2006.01); C03C 3/091 (2006.01); C03C 3/093 (2006.01); C03C 3/097 (2006.01); C03C 21/00 (2006.01)
CPC (source: CN EP KR US)
B32B 17/06 (2013.01 - EP KR US); C03C 3/085 (2013.01 - US); C03C 3/087 (2013.01 - EP KR US); C03C 3/091 (2013.01 - EP US); C03C 3/093 (2013.01 - CN EP KR US); C03C 3/097 (2013.01 - CN EP KR US); C03C 4/18 (2013.01 - KR); C03C 21/002 (2013.01 - CN EP KR US); H05K 5/0017 (2013.01 - KR); H05K 5/02 (2013.01 - CN); H05K 5/03 (2013.01 - CN KR US); B32B 2307/50 (2013.01 - KR US); C03C 4/18 (2013.01 - US); C03C 2204/00 (2013.01 - KR US); H05K 5/0017 (2013.01 - US)
Citation (examination)
US 5674790 A 19971007 - ARAUJO ROGER J [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
US 10131567 B2 20181120; US 2017197869 A1 20170713; CN 108463439 A 20180828; CN 108463439 B 20220722; CN 114956551 A 20220830; EP 3400202 A1 20181114; EP 3400202 B1 20240221; JP 2019509238 A 20190404; JP 2023002719 A 20230110; JP 7165055 B2 20221102; KR 102650166 B1 20240321; KR 20180101429 A 20180912; TW 201736300 A 20171016; TW 202140403 A 20211101; TW 202244021 A 20221116; TW I736571 B 20210821; TW I775541 B 20220821; TW I820803 B 20231101; US 11220452 B2 20220111; US 11718554 B2 20230808; US 11993539 B2 20240528; US 2019084870 A1 20190321; US 2022064052 A1 20220303; US 2023278910 A1 20230907; WO 2017120424 A1 20170713
DOCDB simple family (application)
US 201715400267 A 20170106; CN 201780006069 A 20170106; CN 202210786363 A 20170106; EP 17701228 A 20170106; JP 2018535017 A 20170106; JP 2022169118 A 20221021; KR 20187021872 A 20170106; TW 106100396 A 20170106; TW 110127289 A 20170106; TW 111126967 A 20170106; US 2017012459 W 20170106; US 201816193266 A 20181116; US 202117522221 A 20211109; US 202318195880 A 20230510